CNBC.com has the details here:
[T]he Rockefeller Institute of Government noted on Friday that overall tax collections were still 2.1 percent below peak levels, and personal income tax collections were still 6.8 percent below the high reached in fiscal 2008. ...
The Rockefeller report noted that in fiscal 2010, total tax collections were down from the peaks by a much steeper 10 percent and in fiscal 2009 by 8.4 percent.
The Rockefeller report noted that in fiscal 2010, total tax collections were down from the peaks by a much steeper 10 percent and in fiscal 2009 by 8.4 percent.